US Regions Brace for Intense Heat Wave and Potentially Life-Threatening Flooding

A substantial heat wave is impacting the Intermountain West, Northern Plains, and Upper Great Lakes, with its most intense period expected mid-week and conditions persisting into the weekend. Simultaneously, southwest Texas is under threat of severe flash and arroyo flooding due to excessive rainfall, a risk that continues through Thursday. These dual weather phenomena pose significant challenges across different parts of the country.